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General Science
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Biological Sciences
50
Modern Materials
21
Atomic Structure
87
Energy Resources
43
Elements and Substances
76
Plant Photosynthesis and Respiration
52
Space and Solar System
230
General Science for Class 6
1155
General Science for Class 7
2197
General Science for Class 8
0
Basics of Electricity
28
Show/Hide Answers
Physical and Chemical Changes
A component without which fertilizer is incomplete, is
ammonia
nitrogen
methane
ethene
Author:
rikazzz
Comment
Sound Waves
Sound is created by our vocal cord due to
air in lungs
cilia in the throat
vibration in throat
vibration in lungs
Author:
rikazzz
Comment
Respiration and Food Energy
The number of viruses which an average sneeze can spread in 10 meters area, is
1000
10000
100000
1000000
Author:
rikazzz
Comment
Physical and Chemical Changes
No new substance is formed during
photosynthesis
respiration
physical change
chemical change
Author:
rikazzz
Comment
Atoms and Atom Model
The atomic number of hydrogen is
1
2
3
4
Author:
rikazzz
Comment
Reproduction in Plants
Mostly the color of sepal is
yellow
green
orange
red
Author:
rikazzz
Comment
Solutions
A substance which has a bitter taste, soapy to touch and turns red litmus into blue is called
alkali
acid
solution
solvent
Author:
rikazzz
Comment
Sound Waves
The louder the sound, the more
the wave front
the wavelength
the energy
the frequency
Author:
rikazzz
Comment
Dispersion of Light
When red and blue are combined together, they form
yellow
magenta
orange
purple
Author:
rikazzz
Comment
Feeding Relationships and Environment
During winter, dormant condition of insects is termed as
pause
diapause
interrupt
respite
Author:
rikazzz
Comment
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